/* Copyright (C) 1992, 1995, 1996, 1999 Free Software Foundation, Inc.   This file is part of the GNU C Library.   The GNU C Library is free software; you can redistribute it and/or   modify it under the terms of the GNU Lesser General Public   License as published by the Free Software Foundation; either   version 2.1 of the License, or (at your option) any later version.   The GNU C Library is distributed in the hope that it will be useful,   but WITHOUT ANY WARRANTY; without even the implied warranty of   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU   Lesser General Public License for more details.   You should have received a copy of the GNU Lesser General Public   License along with the GNU C Library; if not, write to the Free   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA   02111-1307 USA.  */#ifndef _IEEE754_H#define _IEEE754_H 1#include <features.h>#include <endian.h>__BEGIN_DECLSunion ieee754_float  {    float f;    /* This is the IEEE 754 single-precision format.  */    struct      {#if	__BYTE_ORDER == __BIG_ENDIAN	unsigned int negative:1;	unsigned int exponent:8;	unsigned int mantissa:23;#endif				/* Big endian.  */#if	__BYTE_ORDER == __LITTLE_ENDIAN	unsigned int mantissa:23;	unsigned int exponent:8;	unsigned int negative:1;#endif				/* Little endian.  */      } ieee;    /* This format makes it easier to see if a NaN is a signalling NaN.  */    struct      {#if	__BYTE_ORDER == __BIG_ENDIAN	unsigned int negative:1;	unsigned int exponent:8;	unsigned int quiet_nan:1;	unsigned int mantissa:22;#endif				/* Big endian.  */#if	__BYTE_ORDER == __LITTLE_ENDIAN	unsigned int mantissa:22;	unsigned int quiet_nan:1;	unsigned int exponent:8;	unsigned int negative:1;#endif				/* Little endian.  */      } ieee_nan;  };#define IEEE754_FLOAT_BIAS	0x7f /* Added to exponent.  */union ieee754_double  {    double d;    /* This is the IEEE 754 double-precision format.  */    struct      {#if	__BYTE_ORDER == __BIG_ENDIAN	unsigned int negative:1;	unsigned int exponent:11;	/* Together these comprise the mantissa.  */	unsigned int mantissa0:20;	unsigned int mantissa1:32;#endif				/* Big endian.  */#if	__BYTE_ORDER == __LITTLE_ENDIAN	/* Together these comprise the mantissa.  */	unsigned int mantissa1:32;	unsigned int mantissa0:20;	unsigned int exponent:11;	unsigned int negative:1;#endif				/* Little endian.  */      } ieee;    /* This format makes it easier to see if a NaN is a signalling NaN.  */    struct      {#if	__BYTE_ORDER == __BIG_ENDIAN	unsigned int negative:1;	unsigned int exponent:11;	unsigned int quiet_nan:1;	/* Together these comprise the mantissa.  */	unsigned int mantissa0:19;	unsigned int mantissa1:32;#else	/* Together these comprise the mantissa.  */	unsigned int mantissa1:32;	unsigned int mantissa0:19;	unsigned int quiet_nan:1;	unsigned int exponent:11;	unsigned int negative:1;#endif      } ieee_nan;  };#define IEEE754_DOUBLE_BIAS	0x3ff /* Added to exponent.  */union ieee854_long_double  {    long double d;    /* This is the IEEE 854 quad-precision format.  */    struct      {#if	__BYTE_ORDER == __BIG_ENDIAN	unsigned int negative:1;	unsigned int exponent:15;	/* Together these comprise the mantissa.  */	unsigned int mantissa0:16;	unsigned int mantissa1:32;	unsigned int mantissa2:32;	unsigned int mantissa3:32;#endif				/* Big endian.  */#if	__BYTE_ORDER == __LITTLE_ENDIAN	/* Together these comprise the mantissa.  */	unsigned int mantissa3:32;	unsigned int mantissa2:32;	unsigned int mantissa1:32;	unsigned int mantissa0:16;	unsigned int exponent:15;	unsigned int negative:1;#endif				/* Little endian.  */      } ieee;    /* This format makes it easier to see if a NaN is a signalling NaN.  */    struct      {#if	__BYTE_ORDER == __BIG_ENDIAN	unsigned int negative:1;	unsigned int exponent:15;	unsigned int quiet_nan:1;	/* Together these comprise the mantissa.  */	unsigned int mantissa0:15;	unsigned int mantissa1:32;	unsigned int mantissa2:32;	unsigned int mantissa3:32;#else	/* Together these comprise the mantissa.  */	unsigned int mantissa3:32;	unsigned int mantissa2:32;	unsigned int mantissa1:32;	unsigned int mantissa0:15;	unsigned int quiet_nan:1;	unsigned int exponent:15;	unsigned int negative:1;#endif      } ieee_nan;  };#define IEEE854_LONG_DOUBLE_BIAS 0x3fff /* Added to exponent.  */__END_DECLS#endif /* ieee754.h */